caffe - libcaffe error in cpp eclipse -

i want use cpp read leveldb features extracted caffe. use following code in eclipse:

// copyright 2014 bvlc , contributors.  #include <glog/logging.h> #include <stdio.h>  // snprintf #include <google/protobuf/text_format.h> #include <leveldb/db.h> #include <leveldb/write_batch.h> #include <string> #include <vector> #include <cassert> #include <iostream> #include <map>  //#include "cpp/sample.pb.h" #include "caffe/proto/caffe.pb.h"  // for: datum using namespace caffe; #define number_features_per_image 16 using namespace std;  int main(int argc, char** argv) {     //google::initgooglelogging(argv[0]);     if (argc < 2)     {         printf("error! not enough arguments!\nusage: %s <feature_folder>", argv[0]);     exit(1);     }  log(info) << "creating leveldb object\n"; leveldb::db* db; leveldb::options options; options.create_if_missing = true; leveldb::status status = leveldb::db::open(options, argv[1], &db); assert(status.ok());  leveldb::iterator* = db->newiterator(leveldb::readoptions()); int = 0; double count = 0.0f; (it->seektofirst(); it->valid(); it->next()) {     datum d;     d.clear_float_data();     d.clear_data();     d.parsefromstring(it->value().tostring());     (int j = 0; j < d.height(); ++j)         count += d.float_data(j);     i++; } assert(it->status().ok());  log(info) << "number of datums (or feature vectors): " << << "\n";; log(info) << "reduction of vectors scalar value: " << count << "\n"; delete it; } 

it builds without error,but when running says: /home/deep/cuda-workspace/readleveldb/debug/readleveldb: error while loading shared libraries: libcaffe.so.1.0.0-rc3: cannot open shared object file: no such file or directory

what problem ?

you program fail find *.so. there 3 method:

1. create links of *.so in /usr/lib:

ln -s /where/you/install/lib/*.so /usr/lib

sudo ldconfig

2. modify ld_library_path:

export ld_library_path=/where/you/install/lib:$ld_library_path

sudo ldconfig

3. modify /etc/ld.so.conf:

vim /etc/ld.so.conf

add /where/you/install/lib

sudo ldconfig